Floods caused by monsoon rains have killed at least eight people and disrupted the lives of 400,000 across Myanmar, the government said, a year since the worst floods in decades left thousands homeless and inundated vast tracts of farmland.

Weeks of torrential rains have flooded more than 400,000 acres of paddy fields, exacerbating last year's damage, a senior Agriculture Ministry official said on Monday.

With a per capita gross domestic product of $1,244, Myanmar is one of the poorest countries in East Asia and the Pacific.

Parts of Myanmar are flooded annually at the peak of the monsoon season, but the damage this year is being watched closely because reconstruction from last year is still under way.